package com.jzcloud.compare.a2aTest;


public class DiffAnalysisService {

    /**
     * DRDS分片差异分析核心逻辑
     * @param source 源库数据快照
     * @param target 目标库数据快照
     * @return 包含三类差异数据的传输对象
     */
    public DiffResultDTO analyzeDiff(DataSnapshot source, DataSnapshot target) {
        DiffResultDTO result = new DiffResultDTO();

        // 使用布隆过滤器快速筛除相同数据
        BloomFilter<DataRow> filter = createBloomFilter(source);
        for (DataRow row : target.getRows()) {
            if (!filter.mightContain(row)) {
                result.addToDeleteList(row);
            }
        }

        // 用Jenkins Hash做精确差异匹配
        detectInsertsAndUpdates(source, target, result);

        return result;
    }

    private void detectInsertsAndUpdates(...) {
        // 实现细节省略...
    }
}
